Kirk and the Enterprise Computer become detectives after Scotty is accused of murdering women on a pleasure planet.



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Episode complete credited cast:
Charles Macaulay ...
Jaris (as Charles Macauley)
Pilar Seurat ...
Charles Dierkop ...
Joseph Bernard ...
Tanya Lemani ...
Kara (as Tania Lemani)
John Winston ...
Virginia Aldridge ...
Karen Tracy
Yeoman Tankris (as Judy McConnell)
Judi Sherven ...


While on shore leave on the planet Argelius II with Dr. McCoy and Captain Kirk, Chief Engineer Scott finds himself accused of murdering an exotic dancer he met in a nightclub. He has no recollection of the incident but is found standing over the girl with a bloody knife in his hand. For Mr. Hengist, the chief administrator, the case is cut and dried, but Jaris, the planet's leader, suggests that his wife chair a séance to identify the killer. Tragedy strikes again, still pointing to Mr. Scott as the culprit. Kirk suggests they retire to the Enterprise where they can use its computers to determine if Scott is lying and who the real culprit may be. Written by garykmcd

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Release Date:

22 December 1967 (USA)  »

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Aspect Ratio:

1.33 : 1
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Did You Know?


A large number of costumes are reused from previous episodes in the Argelius bar scene. Some of the extras in the bar are wearing turtleneck uniforms from Star Trek: The Cage (1986) and Star Trek: Where No Man Has Gone Before (1966). Two extras in the bar (one of them is later seen on the foggy street), are wearing the silver cadet uniforms made for the Finnegan character from Star Trek: Shore Leave (1966). Also, one bar patron (played by regular background performer Joe Paz) is wearing Commissioner Ferris' costume from Star Trek: The Galileo Seven (1967), and another is wearing a colonist jumpsuit recycled from Star Trek: The Devil in the Dark (1967). See more »


Scotty's hand shifts position between shots as he is on the witness stand. More, the close-up of Scotty's hand was that of another actor. This was done to conceal the fact that James Doohan's right middle finger was missing, the result of his participation in the 1944 Invasion of Normandy. See more »


Dr. McCoy: But Sybo said that it feeds on death.
Mr. Spock: In the strict scientific sense, Doctor, we all feed on death, even vegetarians.
See more »


Featured in William Shatner's Star Trek Memories (1995) See more »

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User Reviews

The Eternal Ripper
4 January 2014 | by (Buffalo, New York) – See all my reviews

One of my absolute favorite Star Trek prime episodes is this one where John Fiedler gives a wonderful guest star performance as a Star Fleet official at a peaceful planet where pacifism has been the rule for centuries. Small wonder that aggressive cultures like the Klingons or the Romulans haven't taken over.

But was has taken over is a homicidal maniac who really enjoys his work in the manner of Jack the Ripper when he was doing in all those prostitutes in the Whitechapel neighborhood in London. This Star Trek episode isn't real clear on exactly who or what is doing the killing. But in terms of creating an atmosphere of terror of the unknown it can't be beat.

Our Star Fleet legal system comes into play with modern computer devices that have rendered perjury non-existent. In fact William Shatner in another atmosphere was undergoing a court martial and the same lie detector hooked up to the Enterprise computer was used there. Here it Lt. Commander Scott who is thought to be the killer of two women, one of them a member of the Enterprise crew while on shore leave. He's telling the truth, but the truth can be subjective.

In the end the Ripper is discovered to be an entity of sorts and while they don't know what it is, DeForest Kelley and William Shatner and Leonard Nimoy sure find a good method of getting rid of it.

One of the best Star Trek episodes, a must for Trekkies.

3 of 4 people found this review helpful.  Was this review helpful to you?

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